[ Home > Accessories > Guards, Protection, Exterior Trim > Drive Line Protection ] Replace or extend the factory protection. Driveline Protection Extender Help Protect the Rear Driveline $800.00 Driveline Protection Protect your Bottom. $429.95 Copyright© 2003 - 2012 BlueHummer Outfitters All rights reserved. Hummer brand is registered by GM and/or AM General. BlueHummer Outfitters is neither affiliated with nor endorsed by GM and/or AM General. Last Update: May 21, 2012